The electric plug lock is an electronic control lock, and the function of locking or opening the door is achieved through the opening and retraction of the “tongue†through the on-off of the current. Usually the electrical latch consists of two main parts: the lock body and the keyhole. The key component in the lock body is the "lock tongue", and the "keyhole" cooperation can realize the "closed door" and "open door" two states. That is, the lock tongue is inserted into the lock hole to close the door, and the lock tongue leaves the lock hole to open the door. It is because of the retractable function of the tongue that the name of the “electric plug†is awarded. It is also because of this feature that electrical plug locks are often used for various swing doors (two-way opening). At the same time, the characteristics of its “hidden†installation are more suitable for places where the confidentiality of the lock body is relatively high.
The design of the magnetic lock is the same as that of the electromagnet. When the electric current passes through the silicon steel plate, the electromagnetic lock will generate a strong suction force to firmly attract the adsorption iron plate to achieve the effect of locking the door. As long as the small current electromagnetic lock will generate great magnetic force, the access control system that controls the electromagnetic lock power supply will identify the personnel and then turn off the power, and the electromagnetic lock will lose its suction to open the door.
The output of the signal output between the card and the magnetic lock and the electric lock. Usually the signal transmission way between them is through, RS422, RS485, RS232 several kinds of commonly used data transmission ways, among them RS422 is the duplex data transmission way. Transferred outside. Transmission data is generally odd. 3-wire and 5-wire signal lines are used for wiring. In the door sill system, it is connected with magnetic lock or electric lock signal sensing.
Z308 Cast Iron welding electrode
DESCRIPTION:
Z308 Cast Iron Welding Electrodes is covered welding electrode with pure nickel core and graphitic coating for cast iron. The weld seam metal has excellent machinability and crack resistibility. Both AC and DC can be applied.
Application:
Z308 Cast Iron Welding Electrodes is used for repair welding thin pieces and processing surface of cast iron, as well as important gray cast iron pieces, such as engine gear box, machining tools, guideway, etc.
Attention:
A. Welding electrodes must be baked for 1 hourat the temperature of 80-120℃ before welding.
B. Hammering the welded seam to dispel stress around the welding region and to avoid craking.
C. Large current should be avoided in cold welding for cast iron,, so as to reduce impurities of base metal to penetrate the weld seam and to reduce the width of the weld zone, and then to improve the abliity of carck-resistance and capability of machine processing of the weld seam.
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Dingzhou Jinlong Metal Production Co., Ltd. , https://www.weldingelectrodefactory.com